As a friend said to me a few months ago, "What's wrong with your truck?" Why buy another truck? If yours does the job, is paid for or almost paid for, still in good shape, and not beginning to dollar you to death. Then just say no. I was looking because I wanted something newer. I have a 97 GMC 1 ton dually. Runs great, looks great, and pulls my trailer with no problem.
But if you are looking to just go newer then go for it and get what you want.
Happy Trails